cerebellar falx

falx ce·re·bel·'li

[TA] a short process of dura mater projecting forward from the internal occipital crest below the tentorium; it occupies the posterior cerebellar notch and the vallecula, and bifurcates below into two diverging limbs passing to either side of the foramen magnum. Synonym(s): cerebellar falx ☆ , falcula